Gyrating crusher



(No Model.) 2 sheets-sheet 2.

. P. W. GATES.

GYRATING ORUSHER.

No. 525,408. Patented Sept. 4, 1894.

Vans 00. PMOTO-LITNO. WAENINGTON n c 1 NITED STATES PAT NT OFFICE.

PHILETUS WARREN GATES, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GATES IRONWORKS, OF SAME PLACE.

GYRATING CRUSHER.

SPECIFICATION forming part of Letters Patent No. 525,408, datedSeptember 4, 1894.

Application filed November 3, 1893. Serial No. 489,943- (No model.)

T0 at whom it may concern:

Be it known that I, PHILETUS WARREN GATES, a citizen of the UnitedStates, residing at Chicago, Illinois, have invented certain new anduseful Improvements in Gyrating Crushers, of which the following is aspecification.

In the drawings, Figure 1 is a vertical longitudinal section ofitheupper portion of my improved crusher; Fig. 2 a plan view of the same;and Figs. 3 and 4 details hereinafter described.

In making my improved gyrating crusher for crushing ores, rocks andsimilar substances, I make an outside upper shell, A, of cast iron orother suitable material and of the desired height and diameter. Thisshell terminates at the top in a lateral flange, a, and at the bottom ina lateral flan ge,.a, which are, of course, cast integrally with theshell. The shell, A, is intended to be supported by a lower shell, B,which terminates at the top in a lateral flange, b, so that the lowerflange of the shell, A, rests on the upper flange of the shell, B, aswill be apparent from an inspection of Fig. l. The upper shellis'provided with a circumferential shoulder, a from which the lateralflange, (1, extends outwardly and upwardly in an oblique direction, asshown at e in Fig. 1. On the top of the upper shell is arranged aspider, C, which is provided with a lateral flange, c, and with adownwardly circumferential flange, c, that slopes inwardly anddownwardly, as at 0 so that when the spider is placed on the upper shellthe outerinclined surface of the flange, 0, will bear against the innerinclined surface of the flange, a, forming a dovetail fit between them.The sizes of the parts are so proportioned that when the spider is inplace and the inclined surfaces tightly wedged together, there will be aspace, 0 between the flange, c, of the spider, and the flange, a, of theshell, and also a space, 0, between the flange, c, of the spider and theshoulder, c of the shell. This causes the pressure of the spider to beexerted in a lateral direction on the shell instead of bearing directlydownwardlyupon the same. As the parts become worn, the spider simplysettles down enough to compensate for the wear, so that a tight jointbetween the shell and spider'- is always secured.

shell and the flange of the spider together, out out, as it were, fromthe two flanges segmentalsections, leaving spaces, D, intended to be inthe same vertical plane when the shell and spider are together. Thesesegmental spaces are shown in Fig. 2. I then arrange a ring, E, providedwith inwardly extending flanges, e, and e above and below. By termingthis part a ring, I do not mean that it must be a continuous piece orcircle, as I simply make it that way as a convenience, and may, if Idesire, make it in parts which contain the inwardly extending flanges.These flanges, e and e, are also made segmental, and are intended to beintroduced into place by fitting them into the segmental spaces, D, ofthe flanges, and then turning the ring sufficiently to bring its upperand lower segmental flanges upon and in contact with the segmentalflanges, a and c. The under surface of the segmental flange, a, isinclined from one end of the segment to the other, as shown at d in Fig.3, and the lower segmental flange, 6', has its upper surfacecorrespondingly and oppositely inclined, so that when it is turned intoplace, as shown in Fig. 3, the oppositely inclined surfaces will bearagainst each other and produce a wedging action, by which a perfectlysecure joint or fit is secured, and the sections at every point held andpreserved in their proper relative horizontal positions, and theliability of the cocking of the sections prevented. When it is desiredto remove the spider for any purpose, all that is necessary is to turnthe ring in the reverse direction until it can be removed, when theparts will be loosened so that the spider can be lifted off. Theflanges, a and b, by which the upper and lower shells are connectedtogether, may, in like manner, be

provided with a ring, F,havingflanges, f and .f', clasping or clampingthe flanges a and b securely together. As the arrangement is the samewhether a shell and a spider or two shells be fitted together, I shallclaim the arrangement in a way applicable to both.

I arrange in the upper shell a lining intended to offer the outercrushing surface on which the material is to be broken. Instead ofmaking this lining or crushing surface of vertical staves,as iscustomary, I make it of 7 one or more horizontal rings, G, resting atthe bottom on the removable ring, g, which ring a I do not desire toclaim in this application. I provide the ring, G, with a desired numberof vertical slots or channels, 9', extending from the top to the bottom.The channels are inclined from the top outwardly as they descend, sothat when the channel in the upper ring is vertical over the channel inthe lower ring, there will be a continuous wedgeshaped channel or groovefrom the top to the bottom of the rings. I insert a wedge-shaped block,H, in the channel, as shown in Fig. 1. I arrange in this wedge block athreaded bolt, 1 I, provided with a head, i, seated in a recess in theupper end of the wedge, as shown in 1 Fig. 4. I make an internalscrew-threaded! hole through the spider, through which the bolt, I,passes. The upper end of the bolt is provided with a head, i, by whichit may be I turned in the one direction or the other. As turned, itmoves the wedge block up or down, so as to tighten or loosen it in itswedgeshaped channel or groove. When turned down the wedge is forced inso as to hold the rings forming the lining or crushing surface securelytogether and in their down position and properly centered, and whenturned up the wedge is withdrawn so that the rings may be taken apartand removed to admit of the insertion of new ones in their place, asthey become worn or defective.

Of course, it will be understood that the improvements that I havedescribed above are intended to be used with the other parts usuallyemployed in the construction of gyrating crushers, but which parts, asthey are well known and understood, I have not considered it necessaryto illustrate or describe.

What I regard as new, and desire tosecu re by Letters Patent, is-- Instone crushers, the combination of an outer shell, a removable innerlining forming the crusher surface, consisting of a horizontal ring orrings provided with vertical channels inclined from end to end, wedgeblocks inserted in such channels, means on the crusher frame forsupporting the crushing rings, means for moving the wedge blocks in onedirection or the other for centering, tightening or loosening the ringor rings, and means for removably securing such parts together and tothe crusher frame, substantially as de scribed.

PHILETUS WARREN GATES. Witnesses:

H. W. How, A. J. GATES.

